state university, where thousands of teenagers are competing. they are competing for top prizes, athletes from all over the nation. this event caps off months of training and grueling competition. there is concern that some of these teenagers may have signed of hcm, which can lead to a heart attack. reggie is watching his son compete in the shot put. >> i am from the houston area and taxes. unfortunately, we have heard of athletes falling down and having cardiac arrest are up -- or some other type of heart condition. we understand it is a serious situation. >> dr. theodore abraham will lead a team at the track and field championships to screen teenagers. she says for the most part is hereditary. >> they have no symptoms and they feel great. it is a problem that could manifest itself at any time without warning, which is the scary part of this whole equation. >> hard to believe that somebody can just drop dead. >> i think it is a good idea. it is important to know if it is an issue are not with the individual athletes. >> anything that is heredit